REPAIR MAINT OF SUB STATION EXTERNAL ELECTRIC SUPPLY SYSTEM EARTHING

Amount

Excavatioin in trenches not exceeding 1.5 m wide and not exceeding 1.5 m in depth and taking out soft/loose soil for laying of cable /erection of pole/stay pit excavation

All as per Sl item No 1 herein before but in hard/dence soil

Excavatioin in trenches exceeding 1.5 m wide and not exceeding 3 m in depth and taking out in Soft / loose soil for laying of cable / pipes, erection of pole/stay pit etc

M&L for crushed stone sand for cable cushoining laid in trenches for protection of cable

M&L for bricks sub class 'B' old size well burnt for cable protection all as specified and directed

M&L for Returning and filling including spreading levelling watering and well ramming in layers not exceeding 25 cm

M&L for Removing excavated material not exceeding 50 m and depositing where directed at a level not exceeding 1.5 m above the starting point

Supply and laying factory cast, unreinforced precast concrete cable cover factory made embossed the mark “LT CABLE” class LV type1 flat size 250x150x40 mm laid in trenches as specified and as directed.

Relaying old Cable covers / bricks complete all as directed at site by Engineer in Charge

Taking out under ground 1.1 KV (E) Grade LT cable of size upto 35sqmm from pole/trenches/walls / ducts etc., for carrying out repairs , relaying, rerouting, laying back through same / different route after carrying out repair / issue under schedule of credit all as directed by Engineer-in-Charge at site.

All As per Sl Item No 10 Herein before but of size 50 Sqmm to 95 Sqmm 3.5 Core

All As per Sl Item No 10 Herein before but of size 120 Sqmm to 185 Sqmm x 3.5 Core

All As per Sl Item No 10 Herein before but of size 240 Sqmm to 300 Sqmm x 3.5 Core

Relaying, rerouting, laying back through same / different route after carrying out repair to LT UG Cable of size upto 35sqmm

All As per Sl Item No 14 Herein before but of size 50 Sqmm to 95 Sqmm 3.5 Core

All As per Sl Item No 14 Herein before but of size 120 Sqmm to 185 Sqmm x 3.5 Core

All As per Sl Item No 14 Herein before but of size 240 Sqmm to 300 Sqmm x 3.5 Core

Supply laying and testing cable XLPE insulated screened PVC beded,galvanized steel trip or wire armoured, electric power cables (heavy duty) 1100 Volt grade wiyh stranded aluminium conductor of size 16 sq mm 2 core. Including taking down old unserviceable cable any size by dismantling of all electrical connection etc all as diercted.

All as per item no 18 above but of size 10 sq mm 2 core.

Supply laying and testing cable XLPE insulated screened beded,galvanized steel strip or wire armoured, electric power cables (heavy duty) 1100 Volt grade with stranded aluminium conductor of size 16 sq mm 4 core. Including taking down old unserviceable cable any size by dismantling of all electrical connection etc all as diercted.

Supply laying and testing cable XLPE insulated screened beded,galvanized steel trip or wire armoured, electric power cables (heavy duty) 1100 Volt grade wiyh stranded aluminium conductor of size 25 sq mm 3,1/2 core. Including taking down old unserviceable cable any size by dismantling of all electrical connection etc all as diercted.

All as per item no 21 above but of size 35 sq mm 3,1/2 core.

All as per item no 21 above but of size 50 sq mm 3,1/2 core.

All as per item no 21 above but of size 70 sq mm 3,1/2 core.

All as per item no 21 above but of size 95 sq mm 3,1/2 core.

All as per item no 21 above but of size 120 sq mm 3,1/2 core.

All as per item no 21 above but of size 185 sq mm 3,1/2 core.

All as per item no 21 above but of size 240 sq mm 3,1/2 core.

Taking out under ground 22 KV (E) Grade HT cable of size 120 to 240 Sqmm from two or four pole/trenches/walls / ducts etc., for carrying out repairs , relaying, rerouting, laying back through same / different route after carrying out repair / issue unde schedule of credit complete all as specified and directed by Engineer-in-Charge at site.

Supply laying and testing cable XLPE insulated screened PVC bedded galvanized steel strip or wire armored, electric power cable heave duty with aluminum conductor 22000 volts earthed grade 3 core cable cross sectional area 120 sqmm complete all as specified and as directed.

Supplying and laying reinforced precast concrete cable cover, factory cast, class EHV, type 1 with peak, size 450mm x 230mm x 50mm

Supply and fix in repair out door type cable end termination joint heat shrinkable type for 22 KV (E) Grade HT cable of size 120 sqmm x 3 Core to 240 Sqmm x 3 Core and connecting the cable with the load and testing complete all as specified and as directed by Engineer-in-Charge at site. Make- Denson, Raychem, M-Seal

Supply and fix in repair indoor type cable end termination joint heat shrinkable type for 22 KV (E) Grade HT cable of size 120 sqmm x 3 Core to 240 Sqmm x 3 Core and connecting the cable with the load and testing complete all as specified and as directed by Engineer-in-Charge at site. Make- Denson, Raychem, M-Seal

M&L for removing / dismantling existing burnt / defective 22 KV (E) Grade HT straight through joint and providing new straight through joint heat shrinkable type for 22 KV (E) Grade HT XLPE cables of size120 sqmm x 3 Core to 240 Sqmm x 3 Core Sqmm complete all as specified and as directed by Engineer-in-Charge at site.

Supply and fix cable jointing kit for 1.1 KV grade cable for straight through joint complete with Jointing material heat Shrink type and accessories suitable for 3 ½ / 4 core XLPE, armoured, Al conductor cable of size 25 to 50 sqmm,Indoor/Outdoor type

All as per item No 35 above but for cable of size 70 to 95 sq mm.

All as per item No 35 above but for cable of size 120 sq mm.

M & L for GI pipe/ tubes light grade of size 100 mm dia for UG cable protection with all fittings laid in trenches, on poles to crossing the roads/Nalah etc .

Cutting and filling bituminus road as per direction of Engr in Charge for laying of UG cable and match the existing road to the existing system.

Taking down existing air break switch assembly complete including MS clamps, nuts and bolts as required and as directed by Engr-in-Charge

All as per item No 40 but drop out fuse assembly complete

All as per item No 40 but lightening arrestor.

Taking down ACSR conductor any type and size with insulator any type by disconnecting electrical connection etc all as directed.

M&L switch air break gang operated triple pole mechanically operated mounted on insulator and steel frame with 9 insulators of 22 KV rating upto 200 amps with operating mechanism worked from ground level for current rating upto 200 amps 22 KV working pressure complete including taking down the old all as directed

S&F lightning arrestor for outdoor use expulsion type complete with all fittings transmission class discharge capacity 10 KA peak amps for 22 KV working pressure including taking down the old existing unserviceable lightning arrestor all as directed.

M&L dropout fuse assembly triple pole mounted on insulator and steel frame with barrel fuse and HT fuse element of 40 amps for 22 KV working pressure including taking down the old existing drop out fuse all as directed.

Taking down existing cross arms bracings supports clamps and back plates fabricated from structural steel sections including nuts bolts washers refixing the same complete all as directed

M&L Cross arms, bracing support, clamps back plates fabricated from structure streel section including nuts, bolts washers, welding bending cold or hot , drilling holes for bolts in any shape or size as directed and including one primer coat one under coat and one finishing coat of paint

M&L for earthling complete with galvanized GI earth plate electrode of size 600x600x6.00 mm, buried directly in ground (earth pit not less than 2.25 mtr below normal ground level) with top edge of earth plate not less than 1.5 mtr below normal ground level connected to GI strip using 32x6mm galvanised iron strip, means of volts, nuts, check nut and galvanized iron or steel including earth work in any type of soil, charcoal salt 15 cm around the earth plate as shown in electrical plate No 5 of SSR part1991,20 mm dia watering pipe medium grade 1.50 mtr long GI protection pipe light grade 15 mm dia from earth pit to main board (NOTE:- maximum length of GI protection pipe with each earth shall not be less than 7.5 mtrs) including necessary pit with cover.

M&L for providing stone aggregate 63 mm for substation premises including cleaning of substation complete all as specified and as directed at site by Engineer in Charge .

M&L for providing RCC Chamber cover 1:2:4 type B1 of size 550 x 550 x 50 mm with 6 mm dia CTD bars 150 mm c/c with 2 nos of handles of 10 mm dia Steel rod 500 mm Long including formwork and all material & labour.

M&L for Earth Pit Indication Plate of MS 450 X 300 x 5 mm Thick welded to AI 50 x 50 x 5 mm x 1.0 Mtr long, painted with one coat of primer and two coats of synthetic enamel paint (Black Colour) duly mentioning the undermentioned details

Supply and fix Voltage transformer of Ratio 22000/RT3/110/RT3V ,IS 3156-1992 with Frequency 50 Hz class B type Phase to earth complete all as specified and as directed. Model No-ECS22F.Make-URJA or equivalent to -Schnider /ABB

M & L for dismantling 22 KV VCB Panel (05 nos) (01 I/C +04 OG) to carry out repairs and replacement of worn out spare parts including servicing/ testing/calibration of relays and digital meters and reassembling the same complete all as specified and directed. Note:- All spare parts reqd will be measured and paid separately.

Supply only in Replacement Power Pack of 22 KV VCB Panel complete all as specified and as directed.

Supply only in Replacement spring charge motor of 22 KV VCB Panel complete all as specified and as directed.

Supply only in Replacement closing coil of 22 KV VCB Panel complete all as specified and as directed.

Supply only in Replacement Triping coil of 22 KV VCB Panel complete all as specified and as directed.

Supply only Bus Bar tape of 22 KV VCB Panel complete all as specified and as directed.

M&L for collecting samples of transformer oil from transformers 22/0.433 KV of capacities upto 1 MVA, measuring of dielectric strength of the same, recording measurements complete all as directed by EIC.

M&L for Filteration and dehydration of transformer oil through filteration and dehydration machine by means of continuous circulation of transformer oil through filteration and dehydration machine till dielectric strength of the oil is achieved up to 50 KV for one minute at 4 mm gap and oil is completely filtered. Note: 1.Oil samples are to collected from top and bottom of oil tank and test results to be submitted for each sample before and after filteration.

Supply and topping up /replacement of new transformer oil of dielectric strength 50 KV at 4mm gap in transformers conforming to IS - 335 / 1983 of various cap installed in various locations . Make of Transformer oil: Power Oil / Indian Oil / Apar Note : New Transformer oil in the transformer will be filled in the transformer only after filteration and dehydration of existing transformer oil of the transformer. (b) Transformer oil shall be supplied in sealed barrel with test result and test cert.

M&L for disconnection of electric supply, dismantling the top cover, carefully, taking out old gasket and replacement of the same with and including new cork sheet, cleaning of the conservator tank, breather assembly, replacement of silica gel, oil level looking glass, bushings, gasket, nuts, bolts, washers etc. including connecting up complete for Tranformers 22 / 0.433 kV of different capacities all as directed by Engineer-in-Charge. Note: Spares required for replacement will be measured and paid separately under respective item except 6 mm thick tope cover cork sheet gasket.

M& L for welding / brazing the air vent / explosion vent pipe, complete for Tranformers 22 / 0.433 KV of different capacities, including testing for smooth functioning of the transformer. Note: Spares required to be replaced will be measured and paid separately under respective item except 6 mm thick tope cover cork sheet gasket.

M&L for Scrubing of old rusted paint from transformer and preparation of surfaces for fresh painting. Painting of transformer by means of spray painting with two coats of synthetic enamel paint of approved colour of transformer up cap 25 KVA to 315 KVA and writing SM NO/MES NO of the transformer.

All as per item No 65 above but of cap 350 KVA to 1MVA

M&L testing of transformer at site, checking for oil leakages, sealing of the leakages in the main tank / conservator / radiator fins by means of application of sealent or welding / brazing as applicable and directed by engineer-in-Charge at site Note: Spares required to be replaced will be measured and paid separately under respective item.

Supply only Following items to be incorporated in repairs HT Bushings(As per sample).

LT Bushings ( as per sample)

Silica gel breather assembly including nipple of suitable size

Silica gel

Cork Sheet gasket for HT /LT Bushings 6 mm thick

Main Tank Drain Valve of suitable size

Oil level looking glass

Explosion vent diaphram.

Nut, bolts, washers

M&L for replacement of transformer radiator fins as per samplt of capacity upto 500 KVA complete all as directed by Engineer-in-Charge at site

M&L for replacement of transformer radiator fins as per samplt of capacity 1000 KVA complete all as directed by Engineer-in-Charge at site

Dismantling and removing of existing unserviceable air break switch with all fittings and fixtures complete, supply, install and commissioning of new air break switch of 22 KV triple pole gang operated vertical type three insulator per pole on steel frame with operating mechanism including GI operating rod of suitable length from the ground level of current rating 200A complete , GI pipe handle, locking arrangement complete all as specified and as directed.

Dismantling and removing of existing unserviceable expulsion/drop out fuse with all fitting complete, supply and fix new expulsion/drop out fuse unit with fuse barrel suitable for 22 KV system triple pole of rating 200A complete with all fittings all as specified and as directed.

Servicing of the Air Break switches by means of cleaning contancts with CTC spray, removing carbon applying petroleum gelly for easy operation and renewal / replacement of the ACSR jumpers, flexible copper ribbon (mesh) , nuts, bolts and washers all as directed and as specified. Note: Cost of ACSR jumpers alongwith alkathine sleeve upto length of 3.00 Mtr , nuts bolts, washers deemed to me included in the quotd rate.

Dismantling of existing jumper of pole structure, supply and fix new jumper with ACSR aluminium conductor of size 6/1x2.59(Weasel) with suitable lugs/connections complete all as directed.

All as per item No 82 but 4 pole structure

All as per item No 82 but 8 pole structure

M&L Danger notice plate of 1.6 mm thick mild steel sheet, of size 250mm x 200mm for 22 KV, vitreous enamelled white, with letter, figures and convetional skull and bones in signal red colour and fixed in front side with suitable mild steel clamps, bolts and nuts, washers complete all as specified and as directed.

All as per item No 85 above but of size 200mm x 150mm for LT

M&L for Scrubing of existing rusted surface of poles 11 mtr long and prepration and painting of surfaces with aliminium paint single coat fine finishing includign cross arms bracing , clamps and supports complete all as specified and as directed.

All as per item No 87 above but of poles 9 mtr long

S&F Pin type, porcelain, vitreous white, brown or green insulator including one galvanised mild steel spindle, two galvanised iron washers and one galvanised iron nut, 150mm height, 150mm dia suitable for 22000 volts grade including taking out existing unserviceable insulator all as specified and as directed.

S&F Disc type insulator, porcelain, vitreous 145mm high and 255mm dia ball and socket type, white brown or green, single disc assembly including taking out existing unserviceable insulator from HT pole all as specified and as directed.

S&F insulator post type, porcelain, vitreous, white, brown or green insulator including galvanised and mild steel straps, washers, insulator bolts, washers and nuts for 22 KV HT OH Line including taking out existing insulators complete all as specified and as directed.

Fabricate, supply and fix in replacement Anti-climbing device; spikes type fabricated out of M.S. bars (round,square and flat) including nuts, bolts, washers and welding in two halves made to shape to suit the cross section of the pole

Supply laying and testing in replacement cable XLPE insulated screened PVC bedded galvanized steel strip or wire armored, electric power cable heave duty with aluminum conductor 22000 volts earthed grade 3 core cable cross sectional area 120 sqmm

M&L for scrubbing down the old patchy / blistered paint of the outdoor type LT Panel / feeder Pillar Box of size not exceeding 2.5mtr x 2.5 Mtr x 0.60 Mtr and painting all the metal parts inside and outside of doors with two coats of synthetic enamel paint of approved colour over a coat of red oxide primer after carrying out repairs / replacement to the door hinges ./ locks, welding the broken doors complete all as directed by Engineer-in Charge at site.

M&L for removing the old burnt out wires, cleaning the panel compartments, cleaning the contacts with CTC spray, carrying out repairs to the old unsv burnt out control wiring / panel wirng of the LT Pane;l / feeder Pillar with copper conductor cable provided with multistranded copper conductor cable terminated with thimbles / lugs, connecting up complete all as directed by Engineer-in Charge at site.

M&L for GI Strip of size 32 x 6 mm as Earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or buried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for loop earthing complete all as directd by EIC at site.

M& L for disconnection of electric supply and earthing connections, sealing the ends, transporting the transformer to civil workshop, dis-assembling into various components, lifting the core and winding, dismantling the core, removing burnt winding, reassembling / laminating the core, rewinding of the burnt out / unserviceable winding on secondary HT side only for all the three phases, varnishing with insulating varnish of approved / specified thickness, baking / drying out in oven for apropriate time, reassembling the transformer complete with and including replacement of HT/LT Bushings, 6 mm thick cork sheet for bushings, top cover gasket, carrying out HV/LV/ Insulation/ Impedance/Loss test ex-factory as per latest IS, transporting back to MES installation, carrying out precommissioning test, and connecting up complete all for satisfactory functioning of the transformer all as specified and directed by E-in-Charge at site for 22/0.433 KV transformers of capacity upto 315 KVA

All as per Sl Item No 97 herein before but of capacity 400KVA-630KVA.

S&F HT 22 KV Barrel fuses of capacity 60 Amps complete all as specified and as directed.

All as per item no 99 but for 30 Amp

All as per item no 99 but for 20 Amp

All as per item no 99 but for 15 Amp

All as per item no 99 but for 10 Amp

All as per item no 99 but for 5 Amp

S&F Aluminium binding wires of dia 3mm to 6 mm complete all as specified and as directed.

M&L for defect rectification HT/LT cable laid in trenches by locating fault with the help of electronic fault locating machine comprising of surge generator pulse, ECHO fault locator with high frequency distance calculator etc.including and additional excavation in normal alluvial strata required for exposing the cable fault ; removal of deteriorated portion of cable treating of cable and keeping the same ready for jointing work for cable of size up to 240 Sq mm 3 core & LT cable of size upto 240 Sqmm. The fault locating equipments will be brought to site within the hours of instruction from Engr-in-Charge as specified

Supply and errect steel tublar swaged poles type 410 SP-55 (11 metre long) conforming to IS complete with cast iron base plate, final taper plug, bolts, nuts and screws including painting with two coats of aluminium paint over a coat of red oxide primer above GL and taring for portion below GL (inside and out side) complete all as specified and as directed.

M&L for PCC 1:4:8 type D-2 using 40mm graded aggregate as in foundations for poles / stays / struts, filling and mass concrete complete all as specified

M&L for PCC 1:2:4 type B1 using 20 mm graded aggregate as in coping of poles / stays / struts etc., complete all as specified

Taking down streetlight fitting / security lights / Building any type from pole /wall and refix the same in its own position including repair and replacement of unserviciable parts and testing complete .

Supply & fix in replacement of LED building/street light of 45 watt along with fixture Make Bajaj CAT Part No BRLEP 45W LED V2 or equivalent to CG/Philips/Wipro complete all as specified and directed

Supply & fix in replacement of LED street light of 75 watt along with fixture.Make:Bajaj CAT Part No BRLEP 75W LED V2 or equivalent to CG/Philips/Wipro complete all as specified and directed

Supply & fix in replacement of SPD up to 50 KA complete all as specified and as directed .Make:Bajaj or equivalent to CG/Philips/Wipro.

Supply & fix in replacement of LED DRIVER for 45 watt street light fitting complete all as specified and as directed .Make:Bajaj or equivalent to CG/Philips/Wipro.

Supply & fix in replacement of LED DRIVER for 75 watt street light fitting complete all as specified and as directed .Make:Bajaj or equivalent to CG/Philips/Wipro.

Supply & fix in replacement of LED DRIVER for 200 watt street light fitting complete all as specified and as directed .Make:Bajaj or equivalent to CG/Philips/Wipro.

Supply & fix in replacement of LED DRIVER for 80 watt High bay light fitting complete all as specified and as directed .Make:Bajaj or equivalent to CG/Philips/Wipro.

Supply & fix in replacement of LED DRIVER for 100 watt Highbayt light fitting complete all as specified and as directed .Make:Bajaj or equivalent to CG/Philips/Wipro.

Supply and fixing weather proof street light junction box of size 300 x 200 x 105mm including MCB SP 6 Amps and connecting terminals 4 way and fixing with street light poles using necessary MS clamps, nuts, bolts washers, lugs for incoming and out going cables, gland for cable etc of suitable size complete all as specified and as directed. Make : Hensel/Sintex/Universal Switch Gear control Note : The rates quoted are inclusive of provision and fixing of suitable lugs and glands for cable connection.

Shree Ayyappa Engineering